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09-25-2020, 07:34 AM - 1 Like   #1
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Which legacy m42 Asahi is this?




These early models all look the same to me. 1/500th max shutter

09-25-2020, 07:44 AM - 1 Like   #2
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That is the Asahi Pentax or AP. The first M42 SLR of 1957.

Thanks,
Ismael
09-25-2020, 08:02 AM   #3
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Thanks. Nice on for the collection then. Comes with a 58/2 Takumar. I guess that was a kit lens back then.
09-25-2020, 08:06 AM   #4
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That's the O.G.

09-25-2020, 08:22 AM   #5
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QuoteOriginally posted by D1N0 Quote
Thanks. Nice on for the collection then. Comes with a 58/2 Takumar. I guess that was a kit lens back then.
As far as I know it was kitted with either a 55 f2.2 (the most common), a 58 f2 (probably the one you have) or a 58 f2.4 I think the 58 f2 is the rarest of them!

Good score!
Enjoy!

Thanks,
09-25-2020, 08:50 AM - 1 Like   #6
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QuoteOriginally posted by ismaelg Quote
As far as I know it was kitted with either a 55 f2.2 (the most common), a 58 f2 (probably the one you have) or a 58 f2.4 I think the 58 f2 is the rarest of them!

Good score!
Enjoy!

Thanks,

They are all special in their own way. The 55/2.2 Takumar is the only 55mm m42 takumar that is 5 element instead of six. The 58/2 is the widest Sonnar lens ever made for SLR and the 58/2.4 is a uncommon Heliar design.
09-25-2020, 09:10 AM   #7
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Indeed, the only Heliar-design that Asahi ever made! The AP looks in good shape apart from needing a clean. It's an early one (137 - mine's a 153), is the shutter working ok?
09-25-2020, 10:26 AM   #8
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QuoteOriginally posted by microlight Quote
Indeed, the only Heliar-design that Asahi ever made! The AP looks in good shape apart from needing a clean. It's an early one (137 - mine's a 153), is the shutter working ok?
I actually bought it for the lens. It was sold as Junk. The shutter works according to the seller, but translated: The shutter is released, but the mirror is still raised, and the shutter film is not closed until the end.


Lens: Aperture blade operation: It is working. (So I don't actually know focussing also works since he didn't mention it. I see only images of the lens focussed in MFD but with closed and open aperture).

The camera I consider as a display Item since I never shoot film anyway.

Also the shutter seems to have moved a bit from it's original position



Last edited by D1N0; 09-25-2020 at 10:47 AM.
09-25-2020, 10:36 AM - 1 Like   #9
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If you VERY carefully help the shutter to close (to the left) the mirror may come down. That can be caused by the mirror return gear not completing the cycle; a lubrication issue.

Thanks,
Ismael
09-25-2020, 10:37 AM - 1 Like   #10
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Hello. Which M42 Asahi is it ? The answer to to the first post question is simple. It's an ASAHI PENTAX !!
It's obviously written right there on the front, right ?

Ahemm... Seriously, as the camera has no additional designation engraving besides its (low) serial # , it is the "AP", the original, the very first Pentax.
It is not the rarest camera of the original Pentax line going from this one to the SV. But it is really rare nonetheless, especially in this condition.

It is not the first M42 reflex camera either, as the firsts were german.


Is it still working somewhat correctly on top of that ?

As for the lens, the 58 f/2 is an even more amazing find, a modified Sonnar design, the only Sonnar standard lens existing for a reflex. A special design.

Don't hesitate to try it out on a more recent camera or a DSLR.

Enjoy !
09-26-2020, 10:39 AM   #11
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QuoteOriginally posted by microlight Quote
Indeed, the only Heliar-design that Asahi ever made!
This is not quite correct. The 100mm f/4 Macro that was introduced as a Super-Takumar (plus Bellows version) and carried on until the A era is also a Heliar type.
09-26-2020, 11:52 AM   #12
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Asahi was the make and Pentax was the model? Can I come to the conclusion that this was the plan but that it changed with the introduction of the Spotmatic? Or sooner than that?
09-26-2020, 03:39 PM   #13
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Yes, Pentax was the name of the M42 camera from Asahi Optical Company, after the M37 Asahiflex models.
Then to distinguish the newer variants from the original Pentax, they added a touch of letters / a number on top of the camera, hence the S3, SV etc... But they were still marketed as ASAHI PENTAX cameras, engraved in big letters on the front.

Came in 1964, the Spotmatic was a new line, it was special : advanced camera given a fully fledged name on the right front, in addition of being also marked traditionally "ASAHI PENTAX".
But people call them by their specific designation. I guess this was seen as diverting people minds from what should be the real trademark, so they dropped the spotmatic appellation.

The updated Electro-Spotmatic was renamed ES, lower spec's cameras were given short alphanumerical names also (SP500).


Then in 1980's the Asahi naming vanished to just keep PENTAX.

Finally the company changed its name after the products they sold, to be named Pentax Corporation instead of Asahi Opt. Co.
In this period there were seldom cameras given a long name, for example Pentax Program A, but in general the company stuck to giving their cameras short letter names or short alphanumerical names, to this day (KM, ME, LX, Z1, MZ-S, K10, K7 etc...)
09-27-2020, 05:05 AM   #14
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Why do I feel sad this venerable lady is destined to be a shelf Queen?
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